chore: move cli/tests/ -> tests/ (#22369)

This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.

2 files changed, 33 insertions, 0 deletions

diff --git a/tests/testdata/npm/file_dts_dmts_dcts/main.out b/tests/testdata/npm/file_dts_dmts_dcts/main.out
new file mode 100644
index 000000000..c92043f8b
--- /dev/null
+++ b/tests/testdata/npm/file_dts_dmts_dcts/main.out
@@ -0,0 +1,24 @@
+Download http://localhost:4545/npm/registry/@denotest/file-dts-dmts-dcts
+Download http://localhost:4545/npm/registry/@denotest/file-dts-dmts-dcts/1.0.0.tgz
+Check file:///[WILDCARD]/main.ts
+error: TS2322 [ERROR]: Type '5' is not assignable to type '"dts"'.
+const value1: Dts1 = 5;
+      ~~~~~~
+    at file:///[WILDCARD]
+
+TS2322 [ERROR]: Type '5' is not assignable to type '"mts"'.
+const value2: Mts1 = 5;
+      ~~~~~~
+    at file:///[WILDCARD]
+
+TS2322 [ERROR]: Type '5' is not assignable to type '"mts"'.
+const value3: Mts2 = 5;
+      ~~~~~~
+    at file:///[WILDCARD]
+
+TS2322 [ERROR]: Type '5' is not assignable to type '"cts"'.
+const value4: Cts1 = 5;
+      ~~~~~~
+    at file:///[WILDCARD]
+
+Found 4 errors.
diff --git a/tests/testdata/npm/file_dts_dmts_dcts/main.ts b/tests/testdata/npm/file_dts_dmts_dcts/main.ts
new file mode 100644
index 000000000..63686e2d3
--- /dev/null
+++ b/tests/testdata/npm/file_dts_dmts_dcts/main.ts
@@ -0,0 +1,9 @@
+import { Value as Dts1 } from "npm:@denotest/file-dts-dmts-dcts/js";
+import { Value as Mts1 } from "npm:@denotest/file-dts-dmts-dcts";
+import { Value as Mts2 } from "npm:@denotest/file-dts-dmts-dcts/mjs";
+import { Value as Cts1 } from "npm:@denotest/file-dts-dmts-dcts/cjs";
+
+const value1: Dts1 = 5;
+const value2: Mts1 = 5;
+const value3: Mts2 = 5;
+const value4: Cts1 = 5;